WO2013129725A1

WO2013129725A1 - Charging socket for electric vehicle, charger plug and charging system comprising same

Info

Publication number: WO2013129725A1
Application number: PCT/KR2012/002050
Authority: WO
Inventors: 김성수
Original assignee: 주식회사 에이디모터스
Priority date: 2012-02-27
Filing date: 2012-03-22
Publication date: 2013-09-06

Abstract

Disclosed is a charging socket formed in a vehicle body, the charging socket comprising a first terminal connected to a pull-up resistor; and a second terminal connected to ground. The first terminal and the second terminal are electrically opened. The first terminal and the second terminal are electrically connected when the charger plug is fitted into the charging socket.

Description

Charging sockets, charger sockets, and charging systems for electric vehicles

The present invention relates to a charging socket, a charger socket, and a charging system including the same for an electric vehicle, and more particularly, to a charging socket, a charger socket, and a charging system including the same for stopping driving of an electric vehicle during charging of an electric vehicle. .

Petroleum energy, which has been the main energy source for hundreds of years, is being depleted, and research on alternative energy sources is being actively conducted due to air pollution and atmospheric changes caused by petroleum energy consumption. In some fields, alternative energy sources such as wind, hydropower, and solar energy, rather than petroleum energy sources, have been commercialized, and in the automobile field, research is being conducted on automobiles using alternative energy sources as fuels to preempt the market. Although not a perfect alternative energy source, this trend has led to the development and commercialization of electric vehicles that consume electricity as an energy source.

With the commercialization of electric vehicles, the demand for electric vehicle chargers or facilities is expected to increase. On the other hand, unlike the conventional fuel charging of the vehicle by petroleum, since the electricity is used for the fuel charging of the electric vehicle, it is necessary to educate, warn, and prevent safety accidents. In particular, if the electric vehicle is running when the electric vehicle is charged, the incidence of such a safety accident will be higher.

Accordingly, there is a need for development of a new charging socket, a charger socket and a charging system including the same capable of stopping the driving of the electric vehicle simultaneously with charging the electric vehicle.

The present invention proposes a new charging socket, a charger socket and a charging system including the same capable of stopping the driving of the electric vehicle simultaneously with the charging of the electric vehicle.

According to an embodiment of the present invention, a charging socket formed in a vehicle body of an electric vehicle is disclosed. The charging socket includes a first terminal connected to a pull-up resistor; and a second terminal connected to a ground, wherein the first terminal and The second terminal is electrically open, and when the charger socket is coupled to the charging socket, the first terminal and the second terminal may be configured to be electrically connected.

The charging socket further includes a sensing unit connected to the first terminal, wherein the sensing unit detects the coupling of the charging socket and the charger socket through voltage detection due to an electrical connection between the first terminal and the second terminal. Can be configured.

The charging socket may further include a controller configured to stop driving of the electric vehicle when the voltage is detected by the detector.

According to an embodiment of the present invention, a charger socket formed in an electric vehicle charger is disclosed, and the charger socket includes a third terminal and a fourth terminal formed at both ends of the loop wire, and the electric vehicle itself is connected to the charger socket. When the charging socket formed in the coupled, it may be configured to electrically connect the open electrical circuit formed inside the charging socket.

The charger socket may further include a detector configured to detect the coupling of the charger socket and the charger socket through voltage detection between the third terminal and the fourth terminal.

The charger socket may further include a controller configured to stop driving of the electric vehicle when the voltage is detected by the detector.

A charging system for an electric vehicle according to an embodiment of the present invention is disclosed, wherein the charging system includes a charging socket formed in a vehicle body of the electric vehicle including a first terminal connected to a pull-up resistor and a second terminal connected to ground. ; And a charger socket formed in the electric vehicle charger having a third terminal formed at both ends of the loop wire, and a fourth terminal, wherein the first terminal and the second terminal are electrically open, and the charging When the charger socket is coupled to the socket, the first terminal and the second terminal are in electrical contact with the third terminal and the fourth terminal, respectively, so that the opened first terminal and the second terminal are electrically connected through the loop wire. It can be configured to be connected to.

The charging system may further include a detector configured to detect a combination of the charging socket and the charger socket through voltage detection.

The charging system may further include a controller configured to stop driving of the electric vehicle when the voltage detection is performed by the detector.

The present invention has the effect of preventing a safety accident that may occur when charging the electric vehicle. In addition, the present invention has an effect that can protect other components from the electric shock in addition to the components required for charging when charging the electric vehicle.

1 illustrates a charging socket and a charger socket according to an embodiment of the present invention.

2 illustrates a charging socket and a charger socket according to an embodiment of the present invention.

3 shows a block diagram of a charging socket or a charger socket according to an embodiment of the present invention.

* Reference sign

10, 100: vehicle charging socket 20, 200: charger socket

310: detection unit 320: control unit

The embodiments of the invention described below are illustrative only and are not intended to limit or reduce the scope of the invention. In addition, one of ordinary skill in the art will recognize that such embodiments may be changed, modified, or modified without departing from the spirit or scope of the present invention. In addition, the expression "comprise" as used herein is not used in an exclusive sense, but in a meaning that may encompass other technical configurations.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 illustrates a charging socket and a charger socket according to an embodiment of the present invention. 1 is only shown to help the understanding of the description of the present invention, it is noted that the specific circuit for charging the electric vehicle is actually omitted.

The charging socket 10 is a socket formed in the vehicle body of the electric vehicle, and the charger socket 20 may be coupled to the charging socket when the electric vehicle is charged.

The charging socket 10 may include a first terminal T ₁ and a second terminal T ₁ . A first terminal (T ₁₎ is a second resistor (R ₂₎ is connected with the first port (P ₁₎ through a second resistance (R ₂₎ and a first resistance between the first port (P ₁₎ (R1 One end of) may be connected and the other end thereof may be connected to an external power supply (V _CC ). In addition, the second terminal T ₂ may be connected to ground. Here, the second resistor R ₂ is an optional component and may be omitted.

Meanwhile, as shown in FIG. 1, the first terminal T ₁ and the second terminal T ₂ are electrically open to each other.

The charger socket 20 is a socket formed in a charger for an electric vehicle, and when charging the electric vehicle, the charger socket 20 may be coupled to the charging socket 10.

The charger socket 20 may include a third terminal T ₃ and a fourth terminal T ₄ . The third terminal T ₃ and the fourth terminal T ₄ are connected by a wire 21, that is, a loop wire. In other words, the charger socket 20 may include third terminals T ₃ and fourth terminals T ₄ formed at both ends of the loop wire.

Hereinafter, an operation according to an embodiment of the present invention will be described.

For charging the electric vehicle, the user may fasten or couple the charger socket 20 to the charging socket 10 formed in the electric vehicle body. According to this fastening or coupling, the first terminal T ₁ on the charging socket 10 side is connected to the third terminal T ₃ of the charger socket 20 and the second terminal T on the charging socket 10 side. ₂ ) may be connected to the fourth terminal T ₄ of the charger socket 20. In other words, according to the fastening or coupling, the electrical opening of the first terminal T ₁ and the second terminal T ₂ may be electrically connected through the wire 21.

Therefore, since the first terminal T ₁ and the second terminal T ₂ shown in FIG. 1 are electrically connected, the circuit on the left side of FIG. 1 constitutes one closed circuit. That is, the power input from the external power source V _CC may be distributed and detected at the first port P ₁ through the first resistor R ₁ and the second resistor R ₂ , which are distribution resistors, and the ground.

When the distribution voltage is detected at the first port P ₁ , since the electric vehicle is charging, it may be controlled to stop driving of the electric vehicle through an appropriate signal processing means. A description of the components for stopping the driving of the electric vehicle will be described in detail with reference to FIG.

The detection of the divided voltage will be possible through a series of comparison procedures. For example, when the voltage detected by the first port P ₁ is between the first reference value and the second reference value, the electric vehicle may recognize that the charging is in progress.

If the first terminal T ₁ and the second terminal T ₂ are open, the voltage detected at the first port P ₁ will be the external power supply V _CC . In addition, when the first terminal T ₁ and the second terminal T ₂ are connected due to the coupling or fastening of the charging socket and the charger socket, the voltage detected at the first port P ₁ is (V _CC ). * R ₂ / (R ₁ + R ₂ ) [V] will be. Therefore, the first reference value and the second reference value need to be determined in consideration of the V _CC [V] and (V _CC ) * R ₂ / (R ₁ + R ₂ ) [V].

Meanwhile, as described above, the case where the second resistor R ₂ is omitted will be described. If the first terminal T ₁ and the second terminal T ₂ are open, the voltage detected at the first port P ₁ will be an external power supply V _CC . In addition, when the first terminal T ₁ and the second terminal T ₂ are connected due to the coupling or fastening of the charging socket and the charger socket, the voltage detected at the first port P ₁ is 0 (that is, Grounding state) will be [V]. Therefore, the first reference value and the second reference value need to be determined in consideration of the V _CC [V] and 0 [V].

2 illustrates a charging socket and a charger socket according to an embodiment of the present invention. 2 is only shown to help the understanding of the description of the present invention, it is noted that the specific circuit for charging the electric vehicle is actually omitted.

The charging socket 100 has the same configuration as the charging socket 10 shown in FIG. 1.

The charger socket 200 is a socket formed in a charger for an electric vehicle, and when charging the electric vehicle, the charger socket 200 may be coupled to the charging socket 100.

The charger socket 200 may include a third terminal T ₃ and a fourth terminal T ₄ . The third terminal T ₃ and the fourth terminal T ₄ are connected by a wire 210, that is, a loop wire. In other words, the charger socket 200 may include third terminals T ₃ and fourth terminals T ₄ formed at both ends of the loop wire.

In addition, a third resistor R ₃ is provided between the third terminal T ₃ and the fourth terminal T ₄ , and the third terminal T ₃ and the third resistor R _{3 are} provided. The second port P ₂ may be formed therebetween.

Hereinafter, an operation according to an embodiment of the present invention will be described. 2, unlike FIG. 1, a fastening or coupling between the charging socket 100 and the charger socket 200 formed in the vehicle body on the charger socket 200 side may be detected.

When a user of an electric vehicle or the like fastens or couples the charging socket 100 and the charger socket 200, the first terminal T ₁ on the side of the charging socket 100 is the third terminal T ₃ of the charger socket 200. ) And the second terminal T ₂ on the charging socket 100 side may be connected to the fourth terminal T ₄ of the charger socket 200. In other words, according to the fastening or coupling, the first terminal T ₁ and the second terminal T ₂ may be electrically connected through the wire 210 and the third resistor R ₃ .

Therefore, since the first terminal T ₁ and the second terminal T ₂ shown in FIG. 2 are electrically connected through the wire 210 and the third resistor R ₃ , the circuits on the left and right sides of FIG. Will constitute a closed loop. That is, the power input from the external power supply (V _CC ) is the first port (P ₁ ) through the first resistor (R ₁ ), the second resistor (R ₂ ) and the third resistor (R ₃ ), which are distribution resistors, and the ground. Alternatively, it may be detected by being distributed at the second port P ₂ .

In other words, voltage detection may be performed at both the first port P ₁ and the second port P ₂ . However, unlike the description of FIG. 2, the voltage may be detected only at the second port P ₂ , that is, the charger socket 200.

When the charging socket 100 and the charger socket 200 are fastened or coupled, the voltage detected at the first port P ₁ is (V _CC ) * (R ₂ + R ₃ ) / (R ₁ + R ₂ + R ₃ ), and the voltage detected at the second port P ₂ may be (V _CC ) * (R ₃ ) / (R ₁ + R ₂ + R ₃ ). Accordingly, the fastening or coupling may be detected by comparing the voltage value detected at each of the ports P ₁ and P ₂ with the first reference value or the second reference value.

As a result, it can be designed to stop the driving of the electric vehicle by detecting the fastening or coupling through the detection means connected to each of the ports (P ₁ , P ₂ ), and transmits it to the control unit.

On the other hand, although not described, since the second resistor R ₂ may be omitted, the description thereof will be omitted because it has been described above with reference to FIG. 1.

3 shows a block diagram of a charging socket or a charger socket according to an embodiment of the present invention. The charging system according to an embodiment of the present invention, the circuit shown in FIGS. 1 and 2, a detector 310 for detecting a voltage from the circuit, and when the voltage is detected by the detector, the electric vehicle is driven. It may include a control unit 320 for stopping.

The detector 310 may receive or detect a voltage from the first port or the second port P ₁ and P ₂ shown in FIGS. ₁ and ₂ . The detector 310 may detect whether the applied or detected voltage indicates coupling or fastening of the charging

sockets

10 and 100 to the

charger sockets

20 and 200 using a reference value or the like.

If the applied or detected voltage indicates coupling or fastening of the charging

sockets

10 and 100 to the

charger sockets

20 and 200, the sensing unit 310 may transmit information about the information to the control unit 320. Can be. In other words, the detection unit 310 may detect the coupling or fastening of the charging

sockets

10 and 100 and the

charger sockets

20 and 200 to notify the controller 320 of this.

The controller 320 may control to stop driving of the electric vehicle when the information is received from the detector 310. For example, the controller 320 may open a relay between the electric motors from the power unit (battery) of the electric vehicle to block the connection between them.

Thus, by stopping the driving of the electric vehicle completely when charging the electric vehicle, it is possible to prevent an electric shock accident, such as a driver in the electric vehicle at the time of charging, and to prevent electric shock on other accessories in addition to the circuit related to charging. You can prevent it.

Embodiments of the present invention have been described above, and those skilled in the art may recognize that the embodiments are merely illustrative, not limiting of the invention, without departing from the scope or spirit of the invention. It will be appreciated that variations, modifications, etc. are possible.

Claims

As a charging socket formed in the body of an electric vehicle,

A first terminal connected to the pull-up resistor; and

A second terminal connected to ground,

The first terminal and the second terminal are electrically open;

When the charger socket is coupled to the charging socket, the first terminal and the second terminal is configured to be electrically connected, charging socket for an electric vehicle.
The apparatus of claim 1, further comprising a sensing unit connected to the first terminal.

And the sensing unit is configured to detect a coupling of the charging socket and the charger socket through voltage detection due to an electrical connection between the first terminal and the second terminal.
The charging socket of claim 2, further comprising a controller configured to stop driving of the electric vehicle when the voltage is detected by the detector.
A charger socket formed in an electric vehicle charger,

A third terminal and a fourth terminal formed at both ends of the loop wire,

When the charging socket formed in the electric vehicle body is coupled to the charger socket, configured to electrically connect an open electric circuit formed inside the charging socket, charger socket for an electric vehicle.
The method of claim 4, wherein

And a sensing unit configured to sense a coupling of the charging socket and the charger socket through voltage detection between the third terminal and the fourth terminal.
The charger socket of claim 5, further comprising a controller configured to stop driving of the electric vehicle when the voltage is detected by the detector.
As a charging system for electric vehicles,

A charging socket formed on a vehicle body of the electric vehicle including a first terminal connected to a pull-up resistor and a second terminal connected to a ground; And

A third socket formed at both ends of the loop wire, and a charger socket formed in the electric vehicle charger having the fourth terminal,

The first terminal and the second terminal are electrically open;

When the charger socket is coupled to the charging socket, the first terminal and the second terminal are in electrical contact with the third terminal and the fourth terminal, respectively, so that the opened first terminal and the second terminal connect the loop wire. A charging system, configured to be electrically connected through.
The charging system of claim 7, further comprising a sensing unit configured to sense a combination of the charging socket and the charger socket through voltage detection.
The charging system of claim 8, further comprising a controller configured to stop driving of the electric vehicle when the voltage detection is performed by the detector.